Ok, so lets see what you can make.
Attached is the "BAD" flash with its serial number in its name (GW1W1490006778), and
one that is working ok in its respective motherboard (GW1W149001227). As i wrote before, if i solder the "OK" chip in de "BAD" motherboard, the system works aside the SATA port not "detected".
Note: I uploaded ZIP file because i can not upload bin. The "_OK" and "_BAD" part, of course, are not in the Serial Number......

Hello. I have similar problem with one of these boards - I have one school laptop that i need to fix that have the BIOS "corrupted" - do not even boot to BIOS it self. Changing the UEFI from another (damaged) board and the system boots to UEFI but refuses "to see" (it blocks the access to) the SSD. NOTE - Can boot to USB Linux in it but the SATA SSD wont show up in kernel. Of course cannot boot to Windows because i do not have the SSD functional.
Now,t his is clearly some ME or the security module (CUCo) inside that is blocking or not enabling SATA interface. Using UEFITool...

-- Ok. My bad. The problem was an shorted capacitor near BIOS chip, next to the litle IC or transistor (3 pin). The small capacitor was only detected faultry with infrared camera, because of head from the IC/transistor near it. Strangely all voltages, except in that line not related to any coil, are apparently ok. It is a case for a BadCap! This is easy to occur beacuse this motherboard zone is in the ventilation grid openings and moisture can give this results....

Firstly thank you for the BIOS file.
I can only flash the UEFI yesterday. It seems that is doing the same. I will try to reheat (from bottom) the cpu and see if the system boots to UEFI. Strangely if i remove the BIOS chip, the system will not power up - i could think this UEFI BIOS chip will not be needed to EC in case of BIOS reset (by not connecting battery nor AC adapter/power supply). So maybe the problem is somewere else in this motherboard. I will report when there is more time to see this....

Posted wrong on X512DA thread, i am restarting here and kindly ask moderator to erase my post there.

I have an Asus X512DK (board with only APU) that is powering right away on dc-in voltage from bench supply. CPU start to get hot very fast and then in about 1 minute the fan start to spin. All voltages seem to be good. Current not changing much (dont remember values but are around 500mA). I think this is a case from a corrupted BIOS chip (from Windows Update Mallware).

S/N: K3N0CV10R13613B

Attaching the needed images and file. Cannot upload .bin nor .jpg -...

Escuse me because of delay (work in school and the time flyes away... by the way this is from a student laptop that i am trying to help).
So the sticker and the original BIOS dump is attached.
In the previous post i tought that the model was DK and then scanning the QRCode (attached) i saw that this is in fact DA model. I was wrong because of the thermal design : there are two metal plaques screewed at the mainboard - one for CPU and one for, apparent, GPU. Now i see closely that this board uses integrated GPU in CPU package. Sorry for that misinformation.

S/N: K3N0CV10R13613B...

Please, could someone explain how to edit the UEFI/BIOS image? I wll go read the BIOS guides and resources but i see too many posts asking to fix theyr bios and then they need to post serial number sticker.
I have an Asus X512DK that i think is bootlooping after the bios itself can show something. If i connect the power charger the system goes right away to powerup all voltages (all seem ok) and the CPU is heating a lot (executing the bios code i think) and the LCD screen is power-cycling (darkens). By the symtoms i think this is a BIOS corruption.
Best regards.